Grinding workpiece

ABSTRACT

A grinding workpiece comprises a main body having a joint surface with a predetermined area. A containing chamber with a predetermined depth is inwardly extended from a central position of the joint surface, and an opening is formed on the joint surface. A grinding material is disposed to a portion corresponding to the joint surface of the periphery of the opening.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a maintenance technique for vehicles, and more particularly to a grinding workpiece for cleaning wheel hubs of vehicles.

2. Description of the Related Art

In a conventional work of maintaining vehicles, the cleaning of wheel hubs of the vehicle does not have appropriate tools provided for operating personals. Consequently, when the wheel hubs need to be cleaned, the operating personals merely utilize improper tools, such as sandpapers and grinding wheels, to clean the surfaces of the wheel hub. The work efficiency and cleaning quality performed by the foregoing conventional tools are worse and improper.

SUMMARY OF THE INVENTION

In view of the shortcomings of the prior art, the inventor(s) of the present invention based on years of experience in the related industry to conduct extensive researches and experiments, and finally developed a grinding workpiece.

Therefore, it is a primary objective of the present invention to overcome the aforementioned shortcoming and deficiency of the prior art by providing a grinding workpiece that is applied in cleaning wheel hub components to improve the working efficiency and quality.

A second objective of the present invention is to provide a grinding workpiece. A proper grinding material is utilized to perform the grinding motion to satisfy the demand, thereby rapidly replacing the grinding material.

A third objective of the present invention is to provide a grinding workpiece that is suitable for different types of wheel hubs to achieve the efficacy of easily grinding.

A fourth objective of the present invention is to provide a grinding workpiece that properly concentrates scrap materials produced by the grinding process to effectively avoid influencing the quality of grinding work.

A fifth objective of the present invention is to provide a grinding workpiece that discharges scrap materials produced by the grinding process to retain the quality of grinding work.

To achieve the foregoing objectives, a grinding workpiece provided by the invention comprises a main body, wherein one end has a joint surface, and a containing chamber having a predetermined depth is inwardly extended from a central position of the joint surface, and an opening communicating with the containing chamber is formed on the joint surface; and a grinding material disposed on a portion corresponding to the joint surface of a periphery of the opening.

A more complete appreciation of the present invention and many of the attendant advantages thereof will be readily obtained as the same becomes better understood by reference to the following detailed description when considered in conjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a three-dimensional decomposition chart according to a first embodiment of the present invention;

FIG. 2 is a schematic diagram of an assembled structure according to a first embodiment of the present invention;

FIG. 3 is a schematic diagram of a using state according to a first embodiment of the present invention;

FIG. 4 is a schematic diagram of a structure according to a second embodiment of the present invention; and

FIG. 5 is a schematic diagram of a structure according to a third embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

With reference to FIG. 1 to FIG. 2 for a grinding workpiece in accordance with a first embodiment of the present invention, the grinding workpiece is composed of a main body 11, a grinding material 21 and a pair of connection sheets 31.

The main body 11 is slightly a bell shape and comprises a joint surface 12 located on a side end surface of the main body 11. A circular flange 13 with a proper height is protruded from a periphery of the joint surface 12. A containing chamber 14 with a proper depth is inwardly extended from a center of the joint surface 12, and an opening 14 communicating with the containing chamber 14 is formed at a central position of the joint surface 12. In addition, several oblique gutters 16, which are inwardly inclined toward the containing chamber 14, are disposed on an inner wall of the containing chamber 14. A rib portion 17 is defined between adjacent oblique gutters 16. A transmission shaft 18 is fixedly disposed to the main body 11 that is opposite to the joint surface 12, and the transmission shaft 18 axially corresponds to the joint surface 12.

The grinding material 21 comprises a circular substrate 22 and a circular grinding plate 23 with a proper thickness that is fixedly disposed to a plate surface of the circular substrate 22 by utilizing a side surface. Central ring holes of the circular substrate 22 and the circular grinding plate 23 respectively communicate with the opening 15 of the main body 11, and the grinding material 21 covers each oblique gutter 16 at the opening of the joint surface 12. A grinding plane 231 is located on a circular grinding plate 23 that is opposite to a corresponding plate surface of the circular substrate 22. A grinding circular surface 232 is located on an internal periphery of the circular grinding plate 23. Four gaps 233 are disposed to an external periphery of the circular grinding plate 23 at equal distances.

The pair of connection sheets 31 in the embodiment comprises a male pad 32 and a female pad 33 adhered to each other. The male pad 32 and the female pad 33 are respectively disposed on the joint surface 12 and the circular substrate 22 that is opposite to a side surface of the circular grinding plate 23.

With the assembly of the foregoing components, the grinding material 21 is closely adhered to the main body 11 through the pair of connection sheets 31. Simultaneously, the main body 11 is properly embedded and contained in a circular containing space formed by the circular flange 13 so that the grinding material 21 can be stably combined with the main body 11, and the pair of connection sheets 31 may not come off due to the imposition of excess lateral force at the horizontal direction, resulting in influencing the grinding work.

While using the invention, as shown in FIG. 3, power sources, such as a normal pneumatic power or an electric power, can be utilized to drive the main body 11 to rotate through the transmission shaft 18 so that the grinding material 21 could grind a wheel hub of a vehicle to have an advantage of convenient utilization. Moreover, a protrusion body 41 of the wheel hub can be properly contained in the containing chamber 14 through the invention so that the grinding plane 231 of the grinding material 21 can properly paste on the disc of the wheel hub to perform the grinding work. In the meantime, the grinding circular surface 232 located on the inner periphery of the circular grinding plate 23 surrounds the periphery of the protrusion body 41 of the wheel hub, and the grinding circular surface 232 could grind the periphery of the protrusion body 41 of the wheel hub to rapidly complete the required grinding work.

Further, when the grinding work is performed by the invention, the produced scrap materials can be quickly discharged by the gaps 233 of the circular grinding plate 23 and enter into the containing chamber 14 of the main body via the central ring hole of the circular grinding plate 23. The scrap materials can be concentrated by the generated centrifugal force to the oblique gutter 15 under the rotation of the main body 11. The scrap materials then are removed after completing the grinding work. Therefore, the grinding workpiece provided by the invention can complete the grinding work with high quality.

The grinding material 21 of the invention is combined to the main body 11 through a replaceable combination. When the grinding material 21 would like to be replaced, its replacing motion is quite simple and convenient. While performing the motion of replacing the grinding material 21, each oblique gutter 16 can be stretched by fingers of an operating persona to obtain a better point of application so that the motion of replacing the grinding material 21 can be faster.

Each oblique gutter 16 does not only have the foregoing effects, but also facilitates reducing the volume and weight of the main body 11. The rib portion 17 composed between the adjacent oblique gutters 16 could properly support the grinding material 21. Accordingly, the grinding material 21 can properly lean against the surface to be ground during the grinding process.

With reference to FIG. 4 for a grinding workpiece in accordance with a second embodiment of the invention, the basic composition is approximately similar to the foregoing first embodiment, and the difference is that the grinding workpiece provided the second embodiment could satisfy the demand of wheel hubs having a longer protrusion. In the embodiment, the composition of the grinding material 21 does not only comprise related components, including the circular substrate 22 and the circular grinding plate 23 that are the same as the first embodiment, but also comprises an extension pipe 24 with a proper length that is cascaded between the circular substrate 22 and the joint surface 12 to extend the length, which is protruded from the wheel hub, capable of being contained by the grinding workpiece of the invention. In addition, two side ends of the extension pipe 24 individually connected between the joint surface 12 and the circular substrate 22 are mutually connected by the connection sheets 31.

With reference to FIG. 5 for a grinding workpiece in accordance with a third embodiment of the invention, the composition does not only comprise the whole components depicted by the foregoing second embodiment, but also comprises a base 111, an extension pipe sheath 112 with a proper length connected to the base 111 through one end thereof, and a top cover 113 fastened to another end of the extension pipe sheath 112 on the main body 11. Accordingly, the main body 11 could face the actual demand to achieve the requirement of changing the depth of the containing chamber 14 by installing the extension pipe sheath 112 so that the invention can be applied in grinding different types of wheel hubs.

The present invention improves over the prior art and complies with patent application requirements, and thus is duly filed for patent application. While the invention has been described by device of specific embodiments, numerous modifications and variations could be made thereto by those generally skilled in the art without departing from the scope and spirit of the invention set forth in the claims. 

What is claimed is:
 1. A grinding workpiece comprising: a main body, wherein one end has a joint surface, and a containing chamber having a predetermined depth is inwardly extended from a central position of the joint surface, and an opening communicating with the containing chamber is formed on the joint surface; a grinding material disposed on a portion corresponding to the joint surface of a periphery of the opening.
 2. The grinding workpiece as recited in claim 1, further comprising a pair of connection sheets capable of being repeatedly adhered, wherein the connection sheets are respectively pasted on the joint surface and the grinding material corresponding to each other.
 3. The grinding workpiece as recited in claim 1, wherein the grinding material is a ring shape, and a central ring hole of the grinding material correspondingly communicates with the opening.
 4. The grinding workpiece as recited in claim 3, wherein the grinding material comprises a circular substrate and a circular grinding plate, and a side plate surface of the circular substrate is disposed on the joint surface, and the circular grinding plate is pasted on another side plate surface of the circular substrate.
 5. The grinding workpiece as recited in claim 4, wherein the main body comprises a circular flange, and the circular flange is outwardly extended along a circumference of the joint surface to contain and embed the circular substrate therein.
 6. The grinding workpiece as recited in claim 4, wherein the grinding material comprises an extension pipe having a predetermined length, and the extension pipe is between the circular substrate and the joint surface.
 7. The grinding workpiece as recited in claim 4, wherein the grinding material comprises a grinding plane, and the grinding plane is located on a circular grinding plate that is opposite to a corresponding plate surface of the circular substrate.
 8. The grinding workpiece as recited in claim 7, wherein at least one gap is disposed to an external periphery of the circular grinding plate.
 9. The grinding workpiece as recited in claim 4, wherein the grinding material further comprises a grinding circular surface, and the grinding circular surface is located on an internal periphery of the circular grinding plate.
 10. The grinding workpiece as recited in claim 1, wherein an internal wall surface of the containing chamber of the main body is provided with several oblique gutters, and the oblique gutters respectively incline toward the containing chamber.
 11. The grinding workpiece as recited in claim 10, wherein each oblique gutter is located at the opening of the joint surface and covered by the grinding material.
 12. The grinding workpiece as recited in claim 1, wherein the main body comprises several rib portions, and each rib portion is respectively between two adjacent oblique gutters.
 13. The grinding workpiece as recited in claim 12, wherein each oblique gutter is located at the opening of the joint surface and covered by the grinding material.
 14. The grinding workpiece as recited in claim 1, wherein the main body comprises a base and a top cover connected to a side end of the base so that the containing chamber is extended to an inside of the top cover from an opened end of the base.
 15. The grinding workpiece as recited in claim 14, wherein the main body comprises an extension pipe sheath, having a predetermined length, cascaded between the base and the top cover, and two pipe ends of the extension pipe sheath are respectively fastened to corresponding portions of the base and the top cover.
 16. The grinding workpiece as recited in claim 1, wherein the main body further comprises a transmission shaft, and the transmission shaft is fixedly disposed to the main body that is opposite to the joint surface. 